alleryWhich toxic metal present in e-waste is specifically noted to damage the central and peripheral nervous system and affect brain development in children?
AChromium
BCadmium
CLead
DMercury
Answer & Solution
Correct answer: C. Lead
1. The health-effects table links each e-waste metal to a specific harm.
2. Lead is noted to damage the central and peripheral nervous system and affect brain development in children.
3. Chromium causes asthmatic bronchitis, cadmium accumulates in kidney and liver, and mercury chronically damages the brain and respiratory system, so A, B and D mismatch.
4. Hence the answer is C.
_Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit "Environmental Management", p.330_
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